GeoGebra
material_header.create_lesson
GeoGebra
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棒形圖製作器
material.authors
Cheung
interlinking.title.new
Stupňová a oblouková míra
劉徽的「割圓術」的副本
折纸角度探究
geogebra-020gpho-pro5-answer1
切割圓面積的副本
interlinking.title.discover
test
田中的道路2
簡易統計
Fractal Roulette
圓形墊圈 (Washer) 2
interlinking.discoverTopics
topic.piecewise-function.title
topic.translation.title
topic.general-quadrilateral.title
topic.equation.title
topic.multiplication.title